Appendix A: Troubleshooting
Diagnosing Switch Indicators
| Table |
Symptom | Action |
Power LED is Off | • Power supply is disconnected. |
| • Check connections between the switch, the power cord, and the wall outlet. |
| • Contact your dealer for assistance. |
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|
Power LED is Amber | • Internal power supply has failed. Contact your local dealer for assistance. |
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|
Diag LED is Amber | • Power cycle the switch to try and clear the condition. |
| • If the condition does not clear, contact your dealer for assistance. |
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|
Link LED is Off | • Verify that the switch and attached device are powered on. |
| • Be sure the cable is plugged into both the switch and corresponding device. |
| • Verify that the proper cable type is used and its length does not exceed specified |
| limits. |
| • Check the adapter on the attached device and cable connections for possible |
| defects. Replace the defective adapter or cable if necessary. |
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|
Diagnosing Power Problems with the LEDs
The Power and RPS LEDs work in combination to indicate power status as follows.
|
| Table |
Power LED | RPS LED | Status |
|
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|
Green | Green | Internal power functioning normally; RPS is present. |
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Green | Amber | Internal power functioning normally; RPS plugged in but faulty. |
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|
Green | Off | Internal power functioning normally; RPS not plugged in. |
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Amber | Green | Internal power faulty; RPS delivering power. |
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Off | Off | Both internal power and RPS unplugged or not functioning. |
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Power and Cooling Problems
If the power indicator does not turn on when the power cord is plugged in, you may have a problem with the power outlet, power cord, or internal power supply. However, if the unit powers off after running for a while, check for loose power connections, power losses or surges at the power outlet, and verify that the fans on the unit are unobstructed and running prior to shutdown. If you still cannot isolate the problem, then the internal power supply may be defective.
